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The service is available 24/7, but for best results call Livelinks after PM, and preferably at night when the most users are on.Tip: The free trial is great, but to really hook up you need to use the paid account (to bypass all the other men messaging the women).The researchers found muscle mass has redistributed itself from the upper limbs to the lower limbs as our ancestors evolved.While orangutans, the only remaining species in the genus Pongo, have large amounts of upper body muscle and little lower body muscle, species closer to our own have larger leg muscles The researchers studied bonobos, like the one above, because they are our closest living cousins.Writing in the journal, Professor Zihlman and her colleague Debra Bolter, an anthropologist at Modesto College in California, said: 'As the earliest hominins made the transition from quadrupedal to habitual bipedal locomotion, while still maintaining climbing function, muscle mass decreased, mainly in the upper limbs. Surprisingly male bonobos had almost no body fat at all but 52% muscle mass Humans also have comparatively little skin compared to our bonobo cousins.Modern human lifestyle may now mean we put on more weight than we need, but our ancestors first evolved to store body fat to help them reproduce and survive lean periods around four million years ago, the study claims This table shows how female and male body compositions between bonobos (P. While they have between 10 and 13 per cent of their body made from thick skin, the skin of modern humans accounts for just six per cent of our overall body mass.Professor Zihlman and her colleagues said: 'Comparing the body composition of our closest living relatives with the body composition of Homo sapiens, we can address the other 85% and extend our perspective on how natural selection has shaped the human body.' 'Although body fat for males may not be as critical for reproduction as it is for females, we suspect that male H.erectus would have needed an estimated 7–8% body fat as a buffer against "seasonal hunger".'In order for females of ancestral species of Homo to nourish larger brained infants without the extended developmental period characteristic for H.
Just 15% of bodies - the bones - are fossilised while soft tissue which make up 85% are lost'As the early Homo species expanded out of Africa, the ability to put on, store, and mobilize body fat provided a clear adaptive advantage for both females and males as a backup against extremes of food availability in a variety of environments, as well as mitigating adverse effects on pregnancy and lactation in females.
By comparison the hair, muscle, skin and fat make up 85 per cent of the body.
These are rarely preserved in fossils and there is just one suspected skin sample thought to exist in all of the early human fossils discovered so far.
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